Energy store, energy store arrangement for a motor vehicle and motor vehicle

Patent metadata

Field	Value
Publication number	US-9994121-B2
Application number	US-201515312803-A
Country	US
Kind code	B2
Filing date	Apr 14, 2015
Priority date	May 21, 2014
Publication date	Jun 12, 2018
Grant date	Jun 12, 2018

Abstract

An energy storage device, including a housing part, in which at least one electrical storage cell as well as a connecting element are arranged. The electrical energy storage cell is electrically connected to an electrical connection arranged or formed on at least one freestanding outer wall section of the housing part. The at least one electrical connecting element is surrounded at least in sections by at least one electromagnetic damping element for attenuation of electromagnetic emissions.

First claim

The invention claimed is:

1. An Energy storage device, comprising:
a housing part, in which at least one electrical energy storage cell and at least one electrical connection element are arranged, wherein the electrical energy cells are connected by at least one electrical connecting element with at least one connection arranged or built on at least one freestanding outer wall section of the housing part;
wherein the at least one electrical connecting element is surrounded at least in sections by at least one electromagnetic damping element for attenuation of electromagnetic emissions, wherein the electromagnetic damping element is arranged in the housing part, wherein the electromagnetic damping element is arranged in an installation space, which it fills at least in sections, between at least one inner wall section of the housing part and the at least one energy storage cells;
wherein the electromagnetic damping element is a shaped body formed from at least one magnetic material, wherein the magnetic material is ferrite or a ferrite compound, and wherein the shaped body surrounds the outer circumference of at least one electrical connecting element in the longitudinal direction and in the circumferential direction.

2. The energy storage device according to claim 1 , wherein the electromagnetic damping element is arranged in the installation space between at least one inner wall section of the housing part and the at least one energy storage cell, which it fills up fully.

3. The energy storage device according to claim 1 , wherein the electromagnetic damping element does not touch or at least touches only in sections the at least one electrical connection means.

4. The energy storage device according to claim 1 , wherein the magnetic material is the ferrite compound, and is selected from the group consisting of manganese-zinc-ferrite or nickel-zinc-ferrite.

5. The energy storage device according to claim 1 , wherein the shaped body is provided, at least in sections, with a round and angular cross-section.

6. The energy storage device according to claim 5 , wherein the shaped body is designed as a ring, hollow cylinder or cuboid, with an optionally perforated, annular, cylindrical or cuboid basic form.

7. The energy storage device according to claim 1 , wherein the electromagnetic damping element is designed as an electrical capacitor, or is at least one electrical capacitor.

8. The energy storage device according to claim 1 , wherein the housing part is designed with a cuboidal form.

9. The energy storage device according to claim 1 , wherein the energy storage cells comprise at least two electrodes, at least one separator, which is arranged or built between the at least two electrodes, and at least one electrolyte, wherein the electrodes are connected by means of a connection means on the side of the electrodes via at least one connecting element with outer electrical connection means arranged or formed on a freestanding outer wall section of the housing part.

Assignees

• Audi Ag

Inventors

• Enzinger Tobias
• Feng Hao
• Haschberger Thomas
• Arndt Bastian

Classifications

• H01M50/553

  Terminals adapted for prismatic, pouch or rectangular cells · CPC title

• H01M50/55

  on the same side of the cell · CPC title

• H01M10/4264

  with capacitors · CPC title

• B60L11/1877 Primary

  Operations & Transport · mapped topic

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title